package jdbc;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class LoginDemo {
    public static void main(String[] args) {
        try (Connection connection = DBUtil.getConnection()){
            Statement statement = connection.createStatement();
            Scanner scanner = new Scanner(System.in);
            System.out.println("请输入用户名：");
            String username = scanner.nextLine();
            System.out.println("请输入密码：");
            String password = scanner.nextLine();
            String sql = "SELECT * FROM user " +
                    "WHERE username='"+username+"' AND password='"+password+"'";
            if (statement.executeQuery(sql).next()) {
                System.out.println("登录成功");
            } else {
                System.out.println("登录失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
